.delivery_tankuang{
    width:400px;
    height: 300px;
    background: #fff;
    position: fixed;
    left: 50%;
    top:50%;
    margin:-150px 0 0 -200px;
    display:none;
}
.delivery_tankuang p.please{
    padding:50px 0 0 0;
    text-align: center;
}
.please input.express{
    margin:20px;
    width: 200px;
    height: 28px;
}














